Caps - Tony Done - 9-:28 -0-09-20
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Am I correct in thinking that putting two similar caps is series halves
their capacitance?
Any Caveats? I have a collection of 0.047mF caps, but want to try 0.02 or
thereabouts.
Thanks,
Tony D
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Re: Caps - boardjunkie - 9-:28 -0-09-20
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On Sep 28, 5:12=A0pm, "Tony Done" <tonyd...@bigpond.com> wrote:
> Am I correct in thinking that putting two similar caps is series halves
> their capacitance?
>
> Any Caveats? I have a collection of 0.047mF caps, but want to try 0.02 or
> thereabouts.
>
> Thanks,
>
> Tony D
Series subtracts value, parallel adds. For non power supply
applications (signal path) you can do whatever you wish. With lytics
in the pwr supply, if you series them to get double the voltage rating
its a good idea to bypass them with 220k 1w resistors to keep each one
seeing an equal voltage. See a twin reverb schematic for an example.
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Re: Caps - crow - 9-:28 -0-09-20
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On Sep 28, 5:12=A0pm, "Tony Done" <tonyd...@bigpond.com> wrote:
> Am I correct in thinking that putting two similar caps is series halves
> their capacitance?
>
> Any Caveats? I have a collection of 0.047mF caps, but want to try 0.02 or
> thereabouts.
>
> Thanks,
>
> Tony D
I'm not sure but I thought that resistors & capacitors followed the
same convention as speakers parallel =3D half (8+8=3D4), series =3D double
(8+8=3D16). You could always wire a pair up & measure them.
jepp
if it sounds good...IT IS GOOD!
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Re: Caps - RichL - 9-:28 -0-09-20
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Tony Done <tonydone@bigpond.com> wrote:
> Am I correct in thinking that putting two similar caps is series
> halves their capacitance?
>
> Any Caveats? I have a collection of 0.047mF caps, but want to try
> 0.02 or thereabouts.
>
> Thanks,
>
> Tony D
Yes, that's correct. Putting them in series will give you 0.0235mF.
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Re: Caps - RichL - 9-:28 -0-09-20
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crow <jeppardy@msn.com> wrote:
> On Sep 28, 5:12 pm, "Tony Done" <tonyd...@bigpond.com> wrote:
>> Am I correct in thinking that putting two similar caps is series
>> halves their capacitance?
>>
>> Any Caveats? I have a collection of 0.047mF caps, but want to try
>> 0.02 or thereabouts.
>>
>> Thanks,
>>
>> Tony D
>
>
>
> I'm not sure but I thought that resistors & capacitors followed the
> same convention as speakers parallel = half (8+8=4), series = double
> (8+8=16). You could always wire a pair up & measure them.
Nope. Impedances add the same as resistances. Since the impedance of a
cap is inversely proportional to the cap value, you wind up with the
opposite formulae compared with resistors.
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Re: Caps - bg - 9-:28 -0-09-20
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Tony Done wrote in message
<7F9wm.43802$ze1.13276@news-server.bigpond.net.au>...
>Am I correct in thinking that putting two similar caps is series halves
>their capacitance?
>
>Any Caveats? I have a collection of 0.047mF caps, but want to try 0.02 or
>thereabouts.
>
>Thanks,
>
>Tony D
>
You use the same equations as for resistors in parallel. So yes, if the
values are similiar, divide by two.
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